InChI=1/C17H26N4O2/c1-2-18-9-7-16(8-10-18)20-13-11-19(12-14-20)15-3-5-17(6-4-15)21(22)23/h3-6,16H,2,7-14H2,1H3/p+1/fC17H27N4O2/h18H/q+1 E42E56AD70495550